The hosted runner: GitHub Actions 7 lost communication with the server. Anything in your workflow that terminates the runner process, starves it for CPU/Memory, or blocks its network access can cause this error.

port lint gmt4: Warning: Unnecessary platforms line as darwin is the default

port lint grace: Warning: Unnecessary platforms line as darwin is the default

port lint netcdf-cxx: Warning: Unnecessary platforms line as darwin is the default Warning: missing recommended checksum type: sha256

port lint ncview: Warning: Unnecessary platforms line as darwin is the default

port lint octave-netcdf: Warning: Unnecessary platforms line as darwin is the default